Experts warn against covering your baby’s stroller when going outside. It may seem like common sense to do so, especially if it’s a really hot day outside. What parents may not be considering, however, is how hot the stroller is getting.

Protecting your baby from harmful UV rays is a huge challenge. Children need their daily dose of vitamin D, but too much sun is quite harmful to their delicate skin. Babies are also much more sensitive to temperature changes, so they’re at higher risk of heatstroke if they don’t stay cool and hydrated. On a walk, any good parent will take the necessary precautions, but they may be unaware of the dangers in some usual practices.

Swedish researchers wanted to know the temperatures inside strollers, so they conducted a study in 2016. They found that the temperatures in strollers would skyrocket when left outside, even if there was a muslin cover over them. Researchers placed the same strollers out in the sun, and without a cover, the temperature inside them averaged to about 22 degrees Celsius.

"Even when a 'thin cover' was placed over the same pram for 30 minutes, the temperature inside the pram rose significantly - to 34C. And, after an hour, it had risen again to 37C," states the News Hub.

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This temperature spike is mostly due to the fact that there’s no airflow once you cover the stroller. Heat begins to get trapped inside, and the temperatures rise. The conditions are quite similar to leaving a baby in a hot car. If parents don’t stay vigilant, then their baby can easily overheat.

With this in mind, parents should be more careful when choosing what covering to use for their strollers. Usually, built-in ones are good to use because they don’t completely close over the stroller. However, if the sunshade seems too heavy or the stroller doesn’t come with one, then experts recommend using a well-ventilated attachable piece. No matter what cover you choose, it’s important to consistently check on your baby. If they’re beginning to show signs of heat exhaustion or dehydration, then it’s probably best to go back inside. They can only have fun if they’re not overheating.

EDITOR'S NOTE: April 4, 2021, at 1:17 pm "When they put a thin cover over the same strollers for half an hour, the temperatures rose to 34 degrees Celsius; after an hour, they rose to 34 degrees." This has been since corrected with a quote from the source provided. "Even when a 'thin cover' was placed over the same pram for 30 minutes, the temperature inside the pram rose significantly - to 34C. And, after an hour, it had risen again to 37C."

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